Harvest Potatoes / Powdery Mildew on Squash

Question: When are potatoes ready for harvest? D.P.

Answer: New or early potatoes can be dug seven to eight weeks after planting. The potatoes will be one to two inches in size. Potatoes are mature and full-sized when vines die, usually in late August or September. Dig and lift the potatoes out of the soil with a spading fork, taking care not to pierce the tubers.